Prince August Miniatures

Hey I‘m casting and painting Miniatures from the Company Prince August, especially the Seven Years War Series of Moulds/Figures. Currently im making making the french and allied army who were present at the Battle of Minden.
I‘m starting with the allied regiments/contingents of the Infantry/Artillery but later on I will of course be casting/painting the cavalry aswell.

Anybody with experience with the Prince August moulds: which moulds sjould i best be using for the „normal“ cavalry regiments? I‘m aware there are Moulds for Dragoons, Hussars, Prussian Cuirassiers aswell as Austrian Cuirassiers within the Seven Years War Series.
But I‘m unsure which of these would work best for „normal“ hannoverian/hessian/brunswick cavalry.

Has anybody maybe experience with using older moulds from the Holger Errikson Serie oder Karolingers and if so do they work „interchangeably“? Or does the mix look weird?

(Sorry for any grammer/writing mistakes I‘m no native english speaker)